package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnum;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * @author gaopeng
 * @date 2021/11/30
 **/
@Slf4j
//@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
//RestControllerAdvice=ControllerAdvice+ResponseBody
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
public class GulimallExceptionControllerAdvice {

    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题:{},异常类型:{}",e.getMessage(),e.getClass());
        Map<String,String> errorMap=new HashMap<>();
        BindingResult bindingResult = e.getBindingResult();
        bindingResult.getFieldErrors().forEach((fieldError -> {
            errorMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        }));
        return R.error(BizCodeEnum.VALID_EXCEPTION.getCode(),"数据校验出现问题").put("data",errorMap);
    }

    @ExceptionHandler(value = Throwable.class)
    public R handleException(Throwable throwable){
        log.error("系统未知异常:{}",throwable);
        return R.error(BizCodeEnum.UNKNOWN_EXCEPTION.getCode(), BizCodeEnum.UNKNOWN_EXCEPTION.getMessage());
    }
}
